Add option "--build-summary-output-semantic" to analyzer_cli.

pkg/analyzer_cli/test/options_test.dart

Index: pkg/analyzer_cli/test/options_test.dart
diff --git a/pkg/analyzer_cli/test/options_test.dart b/pkg/analyzer_cli/test/options_test.dart
index 29bde19673e48370cb1ff987034fca81caf8baa4..50ee98c3103b2f75f6be4e1ecda4fed0e7413165 100644
--- a/pkg/analyzer_cli/test/options_test.dart
+++ b/pkg/analyzer_cli/test/options_test.dart
@@ -25,6 +25,7 @@ main() {
         expect(options.buildSummaryInputs, isEmpty);
         expect(options.buildSummaryOnly, isFalse);
         expect(options.buildSummaryOutput, isNull);
+        expect(options.buildSummaryOutputSemantic, isNull);
         expect(options.buildSuppressExitCode, isFalse);
         expect(options.dartSdkPath, isNotNull);
         expect(options.disableHints, isFalse);
@@ -318,6 +319,16 @@ class CommandLineOptionsTest extends AbstractStatusTest {
     expect(options.buildSummaryOutput, '//path/to/output.sum');
   }
 
+  test_buildSummaryOutputSemantic() {
+    _parse([
+      '--build-mode',
+      '--build-summary-output-semantic=//path/to/output.sum',
+      'package:p/foo.dart|/path/to/p/lib/foo.dart'
+    ]);
+    expect(options.buildMode, isTrue);
+    expect(options.buildSummaryOutputSemantic, '//path/to/output.sum');
+  }
+
   test_buildSuppressExitCode() {
     _parse([
       '--build-mode',